Wheel Speed Sensor Signal Intermittent
Intermittent signal from a wheel speed sensor detected by the vehicle's system.
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What it means (plain English)
The vehicle's computer notices that the signal from one of the wheel speed sensors isn't stable; it jumps around instead of showing a steady speed. This can happen if a wire is damaged or if there's an issue with the sensor itself.
What the computer is actually seeing
The computer is looking for a steady voltage signal from the wheel speed sensor. Normally, it should see a clean, consistent signal around 0-5 volts that changes with wheel speed. If the signal fluctuates or drops, the code triggers.
What a healthy reading looks like
Wheel speed should read between 0 and 5 volts when the vehicle is moving, with specific readings expected to match actual wheel speeds (e.g., 15 mph should show a corresponding voltage).
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Visually inspect the physical condition of the wheel speed sensor and wiring harness for damage or corrosion.
- 22. Check the connector for secure fit and pin integrity; clean if necessary.
- 33. Verify that the vehicle's wheels are turning freely and are not binding or damaged.
- 44. Use a multimeter to test the voltage at the wheel speed sensor connector; expect around 0.5 to 4.5 volts when the wheel is turning.
- 55. If voltage is fluctuating or absent, replace the wheel speed sensor and recheck.
- 66. Clear the code and take the vehicle for a test drive to see if the code returns.
Common causes
- Damaged wiring or connectors
- Faulty wheel speed sensor
- Corroded connector pins
- Wheel bearing issues affecting sensor placement
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable, but be cautious as ABS and traction control may not function properly.
Will this code come back after clearing it?
If the underlying issue isn't fixed, the code is likely to return.
Does it relate to other systems?
Yes, wheel speed sensors are crucial for ABS and traction control systems.
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